Table of Contents
Troubleshooting
Related Manuals for LG RAD-183A
Summary of Contents for LG RAD-183A
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Page 1: Service Manual
LG Room Air Conditioner SERVICE MANUAL MODEL: WG1805RY6,RAD-183A WG2405RY6,RAD-243A website http://www.lgservice.com CAUTION • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. • ONLY FOR AUTHORIZED SERVICE PERSONNEL. -
Page 2: Table Of Contents
Electrical Parts ...16 Refrigerating Cycle...18 Schematic Diagram...21 Electronic Control Device ...21 Wiring Diagram...22 Components Lation ...23 Troubleshooting Guide ...24 Piping System ...24 Troubleshooting Guide ...25 Room Air Conditioner Voltage Limits...31 Exploded View ...34 Replacement Parts List ...36 2 Room Air Conditioner... -
Page 3: Safety Precautions
Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. WARNING This symbol indicates the possibility of death or serious injury. - Page 4 Be sure the installation area does not deterio- rate with age. • If the base collapses, the air conditioner could fall with it, causing property damage, product failure, and per- sonal injury. 4 Room Air Conditioner Do not install, remove, or re-install the unit by yourself.
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Page 5: Dimensions
Dimensions Symbols Used in this Manual This symbol alerts you to the risk of electric shock. This symbol alerts you to hazards that could cause harm to the air conditioner. This symbol indicates special notes. NOTICE Outside Dimensions 675 (770) - Page 6 COMPRESSOR FAN MOTOR POWER CORD DRAIN SYSTEM NET WEIGHT (lbs/kg) OUTSIDE DIMENSION (inch) (W x H x D) (mm) 6 Room Air Conditioner WG1805RY6 1Ø, 208/230V, 60Hz 17,500/18,000 1,800/1,850 720g(25.4oz) 27(DB),19(WB) 35(DB),24(WB) 2 ROW 15 STACKS LOUVERED-FIN TYP 2 ROW 19 STACKS,LOUVERED-FIN TYPE...
- Page 7 POWER CORD DRAIN SYSTEM NET WEIGHT (lbs/kg) OUTSIDE DIMENSION (inch) (W x H x D) (mm) 7 Room Air Conditioner RAD-183A 1Ø, 208/230V, 60Hz 17,500/18,000 1,800/1,850 720g(25.4oz) 27(DB),19(WB) 35(DB),24(WB) 2 ROW 15 STACKS LOUVERED-FIN TYP 2 ROW 19 STACKS,LOUVERED-FIN TYPE...
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Page 8: Product Specifications
COMPRESSOR FAN MOTOR POWER CORD DRAIN SYSTEM NET WEIGHT (lbs/kg) OUTSIDE DIMENSION (inch) (W x H x D) (mm) 7 Room Air Conditioner RAD-243A 1Ø, 208/230V, 60Hz 23,500/23,000 2,760/2,710 835g(29.3oz) 27(DB),19(WB) 35(DB),24(WB) 2 ROW 15 STACKS LOUVERED-FIN TYP 2 ROW 19 STACKS,LOUVERED-FIN TYPE... -
Page 9: Installation
2. Connect to a single-outlet 15A circuit. (or 20A circuit for Electric Heater Model) 3. To avoid vibration or noise, make sure the air conditioner is installed securely. 4 Avoid placing furniture or draperies in front of the air inlet and outlet. -
Page 10: Window Requirements
Installation Kits Contents Left frame curtain Frame guide(2) Window locking bracket Sill bracket (2) Type A (14) Type B (7) 9 Room Air Conditioner Foam-PE (Adhesive-Backed) Support bracket(2) Type C (5) Type D (2) 26" to 41" 18" min Stool... -
Page 11: Suggested Tool Requirements
Suggested Tool Requirements PREPARATION OF CHASSIS 1. Remove the screws which fasten the cabinet at both sides and at the back. 2. Slide the unit out from the cabinet by gripping the base pan handle and pulling forward while bracing the cabinet. -
Page 12: Cabinet Installation
(Type B) through the cabinet into window stool. 2. The cabinet should be installed with a very slight tilt downward toward the outside. 11 Room Air Conditioner Sill Bracket Carriage Bolt... - Page 13 Fig.15) 11. Lift the inlet grille and secure it with a screw (Type A) through the front grille.(See Fig. 15) 12. Window installation of room air conditioner is now completed. See ELECTRICAL DATA for attaching power cord to electrical outlet.
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Page 14: Operation
The 5 or 6 position is a normal setting for average conditions. • OPERATION : Turns the air conditioner off. MED FAN : Permits the medium fan speed operation without cooling. LOW FAN : Permits the low fan speed operation without cooling. - Page 15 DISPLAY WG2405RY6, WG2405RY6 PRECAUTION: The Remote Control unit will not function properly if bright light strikes the sensor window of the air conditioner or if there are obstacles between the Remote Control unit and the air conditioner. POWER BUTTON Operation starts, when this button is pressed and stops when you press the button again.
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Page 16: Disassembly
8. Re-install the components by referring to the removal procedure, above. (See Figure 19) (Refer to the circuit diagram found on page 23 in this manual and on the control box.) 15 Room Air Conditioner Figure 17 Figure 18 Figure 19... -
Page 17: Air Handling Parts
Air Handling Parts 4. Cover (at the top) 1. Remove the front grille. (Refer to section 17) 2. Remove the cabinet. (Refer to section 18) 3. Remove 11 screws which fasten the brace and covers. 4. Remove the covers and the brace. (See Fig. 20) 5. -
Page 18: Electrical Parts
5. Remove the 3 nuts and the 3 washers which fas- ten the compressor. 6. Remove the compressor. (See Figure 26) 7. Re-instill the components by referring to the removal procedure, above. 17 Room Air Conditioner Figure 24 Figure 25 Figure 26... -
Page 19: Synchronous Motor
9. Capacitor 1. Remove the control box. (Refer to section 19) 2. Remove the knobs and the screw that fasten control panel from control box. 3. Remove the screw that located in the front. 4. Open the bottom side of control box. 5. -
Page 20: Refrigerating Cycle
1. Remove the cabinet. (Refer to section 18) 2. After discharging the refrigerant completely, unbraze the interconnecting tube at the capillary tube.(See caution above) 3. Remove the capillary tube. 4. Re-install the component by referring to notes. 19 Room Air Conditioner Recovery Figure 31 Figure 32... - Page 21 NOTICE — Replacement of the refrigeration cycle. 1. When replacing the refrigeration cycle, be sure to Discharge the refrigerant system using a Freon recovery System. If there is no valve to attach the recovery system, install one (such as a WATCO A-1) before venting the Freon .
- Page 22 Disassembly Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pin-off tool capable of making a leak-proof seal, Leak detector, Tubing cutter, Hand Tools to remove components, Service valve. Figure 33B-Charging Figure 33A-Pulling Vacuum 21 Room Air Conditioner...
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Page 23: Schematic Diagram
Schematic Diagram Electronic Control Device SEG-d TEST SEG-e SEG-f /Reset SEG-g SLIDE VAref KEY0 Room KEY1 Pipe out0 Option1 out1 out2 Option2 Service Manual 22... -
Page 24: Wiring Diagram
Wiring Diagram • MODEL : WG1805RY6 / WG2405RY6 POWER INPUT WH(BL) BK(BR) (Ribbed) (Plain) GN/YL(GN) MOTOR OR(BR) OR(BR) GN/YL (GN) CAPACITOR OR(BR) RY-COMP COMP. 3854AR2330P WIRING DIAGRAM 23 Room Air Conditioner THERMISTOR CN-TH1 SYNC MOTOR RY-SYNC TRANS FORMER FUSE 250V/T2A (115V/T2A) -
Page 25: Components Lation
Schematic Diagram Components Location Main P.W.B Assembly Display P.W.B Assembly Service Manual 24... -
Page 26: Troubleshooting Guide
This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle. EVAPORATOR COILS COMPLETE LIQUID BOIL OFF POINT COOLED LIQUID PRESSURE DROP 25 Room Air Conditioner ROOM AIR CONITIONER CYCLE OF REFRIGERATION SUCTION LINE COOL LOW PRESSURE VAPOR ROOM AIR HEAT LOAD MOTOR COMPRESSOR... -
Page 27: Troubleshooting Guide
Troubleshooting Guide In general, possible trouble is classified in two kinds. The one is called Starting Failure which is caused from an electrical defect, and the other is ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application. Unit runs but poor cooling. - Page 28 Capacitor check. Replacement Irregular motor resistance ( Irregular motor insulation ( Replacement of compressor (Motor damaged) 27 Room Air Conditioner Fails to Start Improper thermostat setting. Loose terminal connection. Improper wiring. Check circuit breaker and fuse. Gas leakage of feeler bulb of thermostat Check of control switch.
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Page 29: Electrical Parts Troubleshooting Guide
Electrical Parts Troubleshooting Guide Possible Trouble 1 The unit does not operate. Is the Trans output power AC 220V? Is the Trans output power about AC 14V? Is output Voltage of IC01D DC 12V? Is output Voltage of IC02D DC 5V? Is the reset circuit all right? (The No.16 of Micom is 5V.) - Page 30 Possible Trouble 3 The compressor always operate. Is the wire connection of RY-COMP all right? • Check the RY-COMP. 29 Room Air Conditioner • Select the setting Temp. to lower Number. Is the voltage N0.7 of IC01M DC 5V? • Exchange IC01M.
- Page 31 Possible Trouble 4 FAN does not operate. Is the voltage NO.1 or 4 of IC01M DC 5V? Is the voltage NO.13 or 16 of IC01M 0V? • Check the RY-Hi or RY-Lo. • Check the wiring diagram. Possible Trouble 5 Auto Swing does not operate.
- Page 32 CN-DISP all right? Does the Q01G~Q04G operate normally on main PCB Ass'y? • Exchange the display PCB Ass'y. 31 Room Air Conditioner • Exchange the battery. • Check the PCB pattern. • Connect connector to CN-DISP exactly. • Exchange IC01G.
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Page 33: Room Air Conditioner Voltage Limits
Room Air Conditioner Voltage Limits NAME PLATE RATING 208~230±10% 115±10% COMPLAINT Fan motor will not run. No power Power supply cord Rotary switch Wire disconnected or con- nection loose Capacitor (Discharge capacitor before testing.) Will not rotate Revolves on overload. - Page 34 Exhaust damper door Unit undersized Excessive noise Turbo or fan Copper tubing 33 Room Air Conditioner CAUSE Check the position of knob If not at the coldest set- ting, advance the knob to this setting and restart unit. Check continuity of the thermostat. Replace ther- mostat if circuit is open.
- Page 35 COMPLAINT Capacitor Compressor cycles on overload. Wiring Refrigerating system Air filter Insufficient cooling or heat- Exhaust damper door Unit undersized Turbo or fan Excessive noise. Copper tubing Rotary switch. Auto air-swing fails. Wiring Synchronous motor. CAUSE Test capacitor. Check the terminals. If loose, repair or replace. Check the system for a restriction.
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Page 36: Exploded View
Exploded View Cooling Model 130910 359012 349480 354210 W48602 135312 159830 135314 Room Air Conditioner 135500 148000 352380 346811 135515 147582 349001 147581-2 147581-1 554031 554030 W48602 559011 149980 349600 130410 554160 550140 W52106-1 W52106-2 552111 352115 352113 352111 35211A... - Page 37 Exploded View Cooling Model 130910 359012 349480 354210 W48602 135312 159830 135314 Room Air Conditioner 135500 148000 352380 346811 135515 147582 349001 567480 268711-1 237200 238310 147581-2 268711-2 147581-1 264110 554031 554030 W48602 559011 149980 130410 554160 550140 W52106-1 W52106-2...
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Page 38: Replacement Parts List
W48602 CLAMP,SPRING W52106-1 TUBE,EVAPORATOR W52106-2 TUBE,EVAPORATOR NOTE) Please ensure GCSC since these parts may be changed depending upon the buyer's request. (GCSC WEBSITE http://biz.LGservice.com) 36 Room Air Conditioner R: Service Parts PART NO. WG1805RY6 3041A30001H 3091AR6056P 3531A11002B 3530A10189A 3551A30015A 2H01102J... - Page 39 Replacement Parts List LOCATION 130410 BASE ASSEMBLY,SINGLE 130910 CABINET ASSEMBLY,SINGLE 135312 GRILLE ASSEMBLY,FRONT(SINGLE) 135303 GRILLE,INLET 135515 COVER ASSEMBLY, CONTROLINDOOR) 146812 MOTOR ASSEMBLY,SYNC. 147581-1 LOUVER,HORIZONTAL 147581-2 LOUVER,HORIZONTAL 147582 LOUVER,VERTICAL 148000 BRACE 149980 SHROUD 159830 FILTER ASSEMBLY,A/C 237200 PANEL,CONTROL 238310 ESCUTCHEON 249950 CONTROL BOX ASSEMBLY,SINGLE 567480 THERMISTOR...
- Page 40 W48602 W52106-1 TUBE,EVAPORATOR W52106-2 TUBE,EVAPORATOR 37 Room Air Conditioner DESCRIPTION BRACE SHROUD ESCUTCHEON ORIFICE MOUNT,MOTOR FAN,TURBO COMPRESSOR CAPACITOR CLAMP,SPRING PART NO Remark RAD-183A 3041A30001H 3091AR6056P AEB30969401 3530AR1604A 3551A30015A 2H01102J 4758AR7264A 4758AR7278A 4758AR6157A 4800AR7271A 4998AR1597B 5231AR6159A 3720AR6163A 3831A20032L 4995A20613Y 6323A20003D 6411A20056P...
- Page 41 Replacement Parts List LOCATION 130410 BASE ASSEMBLY,SINGLE 130910 CABINET ASSY,SINGLE 135312 Grille ASSY,Front(SINGLE) 135314 Grille ASSY,Inlet 135510 COVER,CONTROL(INDOOR) 146812 Motor Assembly,SYNC 147581-1 LOUVER,HORIZONTAL 147581-2 LOUVER,HORIZONTAL 147582 LOUVER,VERTICAL 148000 BRACE 149980 SHROUD 159830 FILTER ASSY,A/C 137215 PANEL,CONTROL 238310 ESCUTCHEON 249950 CONTROL BOX ASSEMBLY,SINGLE 567480 Thermistor ASSEMBLY 264110...
- Page 42 JULY, 2007 P/No.: 3828A20887A Printed in China...